IMPLEMENTS, agricultural, 64, 156 Improved: air pump, 443; combination tool, 176; fires, Kapper's, 17; friction- clutch, 569; life-preserving dress, 110; machine for mortising timber, 31: port- able steam engine, 469; screw-driver, 248; tricycle, 308, 420, 468; velocimaine, 155; waggon-wheel, 220 Improvements in: cooking, 60; direct- acting engines, 108; filtration, 180; motive power, 224; paddle-wheels, 108; power-looms, 608; turret clocks, 84 Index for dividing plate, 114 Insect, cochineal, 137
Looms, power, 608
Low-water detector, 325
Lubricators: economic, 109; Turner's, 157 Lull's improved friction-clutch, 569 Lunar motion, 545
MACCLESFIELD velocipede, 89 Machinery for: boring rock, 373; cutting irregular forms, 208; drilling rock, 272, 300; fret-sawing, 612; magneto-electric, 132; making beet sugar, 393; making soda-water, 404; mortising timber, 31; mowing, 156; planing, 429, 493; sewing, 113, 157, 231, 232, 281, 376, 588; shear- ing, punching, and stretching, 133; smut- ting grain. 594, 595: stoning cherries, 252; turning medallions, 617; washing,
Magneto-electric machines, Slater's, 132 Making soda-water, 404 Mallet, 119.
Management of bees, 597
Manchester wheel gauge, 328 Map of the Darien Canal, 129 Maranta arrow-root, 612 Materials, strength of, 123 McCarthy and Cunningham's improved motive power, 224
Measure and funnel combined, 136 Mechanical fingers, 395; mechanical movements, 5, 28, 53, 76, 104, 124, 148, 177, 200, 221, 248, 269, 292, 321, 314, 365, 392. 417, 440, 464, 488, 336, 581 Medallion turning, 617
Medical coil, 189
Mensuration of superficies, 502 Meteors and comets, 482
Meters: evaporation, 492; gas, 571 Metronome, the, 161
Microscope, the, 579; microscope, Perry's,
Microscopic accessories, 416, 613; micro-
scopic appearance of starches, 493, 612 Microscopical examination : of cocoa, 293; of coffee and chicory, 81
Milburn's apparatus for desiccating grains,
Millstones, 128, 152. 201, 373 Miltonian bicycle, the, 352 Mitrailleuse, the French, 516
Model engine pump, 157; model steam- engine, 213, 236
Moistening labels, 136
Momentum and attraction, 444
Moncrieff's hydro-pneumatic gun-carriage,
Money, Irish ring, 238
Moon, the, 43
Mordan's self-centering chuck, 514
Mortising timber, 31
Motion link, 352, 425, 520, 541, 580;
lunar, 545; motions and figure of the earth, 7, 89, 135, 209
Motive power, improvements in, 224 Mounting planing machine, 493 Mowing machine, Allen's, 156 Musical notation, 496 Mussel-climbing. 561 Muzzle for dogs, 405
NAMES on plans, 141, 188 Nature, sketching from, 3, 4, 106 Nebula and comets, 273, 296 Needham's starter for sewing-machines,
Nets, fishermen's, 380
Now lathe by George Plant, 421; new style of railway, 277; New York pneu- matic tunnel, 32, 36, 37 Notation, musical, 496
OBTAINING motive-power, 224
Occultation of Saturn, 136
Old coins, 94, 118
Opera-glass lenses, 136, 185
Operations of the wood-boring beetle, 176 Optical and spectroscopical, 323, 500, 586 Organ accordion stand, 546; organ blow- ing, 228; organ construction. 112 "Otter" for lifeboat service, 233 Oval, 526
Oxyhydrogen gas stove, 41
PADDLE-WHEELS, Wright's, 108 Pan, vacuum, 393 Papers, clip for, 284 Parabolising specula, 37 Paris, defences of, 560
Patent: apparatus for cleaning grain, 348; coil, Varley's, 20: compound set, 128; rotary spader, 64; starter for sewing-machines, 232; wedge-driving drums, 113
Patterns: cylinder, 260; girder, 259 Pedespeed, the, 61
Perkins's high-pressure engine, 109 Perry's microscope, 253
Perspective, 332; perspective drawing,
Phantom bicycle, 277
Photographic, 333: photographic tent, 520
Photoscope, the, 377
Piano string-space, 352 Piston pressure, 599; Pistons, Ramsbottom's, 405
Plan for carrying trains across the Straits of Dover, 324; plan for cutter-bar, 187 Planet Vulcan, the supposed, 84, 137 Planing machine, 429, 493 Plans, names on, 141, 188 Plant, cochineal, 137; Plant's lathe, 421 Plough, bookbinders'. 259 Pneumatic tunnel, New York, 32, 36, 37 Polariscope, the, 468
Practical geometry, squaring the circle by, 301
Preserving flowers, 357
Presses: bookbinders' cutting, 65; Gough's arming, 441, 442; leather, 597 Pressure: on columns, 21; on piston, 599; of water, 598
Printing and arming press, 441, 442; printing names on plans, 141, 188 Problems, 19, 44, 70, 141, 188, 477, 597 Projections, 93
Propellers, Fothergill's, 12 Proposed Darien Canal, 129 Protractor, 23
Pulleys and blocks, 425; pulleys, Kelsey's wedge-driving, 113
Pumps: air, 325, 445; model-engine, 157; Shand's steam. 85
Punching, shearing, and stretching ma- chine, 133
QUANTITATIVE analysis, 88
RAILWAYS: street, 277; system, Hutchinson's, 149; trains across the Straits of Dover, 324 Ramsbottom's pistons, 405 Readings from the globes, 208, 252, 278, 329, 353, 372, 422, 472, 518, 588 Reaping machine, Allen's, 156 Reciprocal geometry, 601 Reclining sundial, declining, 62 Rectifying the circle, 370, 522 Reeds, harmonium, 382 Rest, slide, 249
Rifles: Chassepot, 517; Soper. 138 Rihoux's life-preserving dress, 110 Ring money, Irish, 238
Road locomotive, 253
Roberts's galvanic battery, 305; Roberts's triple vacuum-pan, 393 Rock-drilling machines, 273, 300, 373 Roller barrow, 359
Rotary spader, patent, 64
Rotatory engines, 61, 115
Royal Polytechnic barometer, 8
Ruddick steam-engine, the, 489
SACKS, lifting, 140
Safety-valves, 214, 260, 280, 309, 325, 352 Saltaire lathe, the, 52
Satellites of Uranus, 522
Saturn, 136, 505, 529 Saw-teeth, 139
Science for the young, 78, 79, 80, 105, 154,
171, 196, 222, 268, 296, 297, 318, 338, 364, 411, 413, 485, 507, 508, 532, 533, 557, 581, 582
Scraper for boilers and tubes, 429 Screw-cutting lathe, small, 252; screw- driver, improved, 248; screw power, 592; screw-propellers, Fothergill's, 12, Scroll for head-rail, 425
Seck's apparatus for cleaning grain, 348 Self-acting blowpipe, 305; self-acting feed- water heater, 369; self-centering wire- chuck, 544; self-feathering screw pro- pellers, 12; self-propelling vehicles, 77 Setting jewelled holes, 428 Sewing-machines, 113, 157, 231, 232, 281, 376, 588
Shand's steam-pumps and fire-engines, 85 Shearing animals and skins, 125; Shear- ing, punching, and stretching machine, 133
Shells, concussion, 136
Shewan's spiral water-wheel 157 Shiptonian velocipede, the, 253 Sirius, spectrum of, 362
Sketching from Nature, 3, 4, 106 Skins, shearing, 125
Slater's magneto-electric machines, 132 Slide-rest, spherical, 249; slide screw- cutting lathe, small, 252; slide-valve, 255, 589
Small slide screw-cutting lathe, 252 Smith turn buckle, the, 612
Smut and separating machine, 594, 595 Soda-water machine, 404
Solar calorimeter, 416; solar eclipses, 225 Solomons's compound set, 128 Soper rifle, the, 138
Sources and application of electricity, 26, 27, 75, 195, 196, 265, 388, 531, 580 Space for strings in piano, 352 Spader, patent rotary, 64 Specimens of turned work, 372 Spectroscopical and optical, 323, 500 Spectrum of Sirius, 362
engines and pumps, 85; steam joint, 571; steam-power, 46; steam whistle, 43 Step for bicycle, 614
Stevens's improvements in cooking, 60 Stockwell's improved combination tool,
Stone and brick, drill for. 183 Stoning-cherries, machine for, 252 Storer's direct-acting engines, 108 Stove, oxyhydrogen gas, 41 Strains on girders, 10
Street railway, 277
Strength of materials, 123
Stretching, shearing, and punching ma- chine, 133
String and belt, Wampum, 44; string space in piano, 352
Stripes of the sunbeam, 145, 172, 193, 217 Structure of a country, geological, 271 Sunbeams, stripes of, 145, 172, 193, 217 Sundials: erect declining, 15; declining reclining, 62
Sun spot, 397; sun's parallax, 402 Superficies, mensuration of, 502 Supposed planet Vulcan, 84, 137 Swinging-gate latch, 61 Symbols, chemical, 49, 99 System of railways, Hutchinson's, 149
TEETH: wheel, 328; saw, 139 Telegraphy, 527
Telescopic, 85, 204, 472, 527, 586, 602 Tent, photographic, 520
Theory and application of electricity, 26, 27, 75, 195, 196, 265, 388, 531, 580. Three-wheeled velocipede, 262 Throttle-valve, 261
Timber, machine for mortising, 31
Tool-holder, 209; tool, improved combina- tion, 176; tool for inclined or level sur- faces, 401
Trains across the Straits of Dover, convey- ing, 324
VACUUM-PAN, triple, 393 Valves: double-beat Cornish, 356; lead of valve, 255; lever of valve, 260; safety, 214, 260, 280, 309, 325, 352; slide-valve, 589; throttle-valve. 261; valve, 20 Varley's patent coil, 20
Vehicles, self-propelling, 77 Veloce, $33
Velocimane, Doirier's, 155
Velocipedes: English," the, 65: four- wheeled, 521: "Macclesfield," the, 89; "Shiptonian," 253; sportsman's, 349; three-wheeled, 262; trotting, 76; true,
Vicissitudes of the flute, 411, 459, 604 Vulcan, the planet, 84, 137
WAGGON-WHEEL, Keyes's, 220
Wampum string and belt, 44 Washing machine, 429 Waste, cotton, 19
Watches, winding, 443
Water-barometer, 396: water, convexity of, 252; water, distilling, 380; water- gauge and gauge-cock, 61; heater, feed, 369; water-power, 46; water-pressure, 598; water-weed, Ame- rican, 553; water-wheel, 228
Watering garden, 334
Watson's deep tubular wells, 276 Wedge-driving drums, Kelsey's, 113 Weed, American water, 553 Wells, tubular. 276 Whalebone-splitting, 499
What stripes the sunbeam, 145, 172, 193,
ABSTRACT of paper on the sun, 577 Abuses and uses of the ear, 5, 28, 51 Accessories to the microscope, 462 Accidental colours, 289
Action of the jaws in drowning, 364; action of magnetism on light, 33 Activity, lunar, 511 Adulteration of coffee, 81 Æronautical Society, 295 Air, filtered, 102
Albert Hall, organ for, 54
American water-weed, 553 Analysis, food, 175, 202, 292 Ancient coins, 169, 197, 218, 314
Animal magnetism, 343; animals, shear- ing, 125
Antiquity of the world, 313, 337, 362, 410, 435 484, 553, 580 Antiseptic, a new, 559 Aplanatic searcher, 179
Apparatus: desiccating grains, 4; dis- tilling, 604; optical 606; smutting grain,
Application of photography to military purposes, 439; application and theory of electricity, 26, 74, 146, 195, 218, 265, 340, 387, 481, 530, 579
April, astronomical notes for, 34 Arming press, Gough's, 441
Art workmanship competition, 319 Astronomical notes, for April, May, June, July, August, and September, 34, 155, 250, 346, 444, 563; Astronomical Society, Royal, 8, 109, 224; astronomical stu- dents, hints to, 73, 265, 386 August, astronomical notes for, 444 Auk, the great, 124
Bicycle, the Phantom," 276
Plane's machine for mortising timber, 31 Blast furnace, regenerative, 244 Blindness, colour, 121, 150, 169, 194 Blowpipe, the ENGLISH MECHANIC, 77 Body and mind, 177, 197, 221, 242, 274, 841, 366
Boiler evaporation, meter for, 490; boiler inspection, 466; boilers: high pressure, 459; stationary, 459
Boring insects, 176; boring rock, machine for, 367
Bort for dressing millstones, 127, 152, 178,
Combination tool, improved, 175
Combustion, phenomena of, 2, 32, 55 Comet, Halley's, 50, 77, 100
Comets and meteors, 313, 362, 434, 482;
comets and nebulæ, 272, 295 Common roads, steam on, 442 Competition of art-workmen, 319 Compound engines, 465; "compound set," Solomons's, 128
Condition of the sun, 577
Constructing high electrical resistance, 466
Constructive horology, 418
Country and town microscopical jottings, 337, 363 410, 436, 484 Cranes, wrought-iron, 443, 536, 583 Cunningham and McCarthy's improve- ments in obtaining motive power, 223 Currents, electric, 603
Curious caterpillars, 20, 125, 243, 339, 487.
Cutting glass, 298 Cyclosis in Anacharis, 553 Cylinders, friction in, 273, 294, 344, 388
DARIEN CANAL, proposed, 129 Decorticating grain, 343
Deep coal-mining, 294; deep tubular wells, 275; deep wells, motive power from, 391
Defences of Paris, 560 Desiccating grains, 4
Determination of sulphur in irons, 54 Diamond or bort for millstones, 127, 152, 178, 200; diamond-pointed steam drills, 272; diamond rock-boring machine, 367 Different kinds of foods, value of, 107; different modes of working coal, 269, 294
Direct-acting engines, Storer's, 108 Discoveries, recent scientific, 58, 245, 368 Distilling apparatus, Coffey's, 604 Doirier's improved velocimane, 155 Dress, life-preserving, 110 Dressing lead ores,
80; dressing mill- stones, 127, 152, 178, 200 Drilling machine, the Burleigh, 299; drilling rock, 272
Drills, diamond-pointed, 272 Drowning, action of the jaws in, 364 Duty of steam-engines, 319 Dyeing, phosphates in, 511
EAR, the, its uses and abuses, 5, 28, 51 Earth, the, its figure and motions, 6 Eclipses, solar, 225
Economic lubricator, 109
Economical purification of coal gas, 394 Economising heat, 388 Edge tools, grinding, 275 Efficient lathe, an, 52
Electric currents, 603; electric fulgurator, the, 224
Electrical resistance, high, 466 Electricity, its theory, sources, and appli- cation, 26, 74, 146, 195, 218, 265, 340, 387, 481, 530, 579
Electro-typographic machine, 510 Elementary science, 54, 78, 105, 154, 171, 196, 222, 267, 296, 318, 337, 364, 411, 485, 507, 532, 556, 581
Emigration to Victoria, 315, 345, 389 Employment of workmen, 174 Enamel, printing on, 538 Enamelling liquor barrels, 586 Energy, 366, 390, 415, 510
Engineers, Manchester Institution of, 31 Engines: compound, 465; direct-acting,
108; duty of, 319; high-pressure, 106; portable, 467; Ruddick, the, 489 ENGLISH MECHANIC blowpipe, the, 77; ENGLISH MECHANIC lifeboat, 101; ENG- LISH MECHANIC Mutual Improvement Society, Manchester, 220 ; ENGLISH MECHANIC Society of Arts, Edinburgh, 180, 195, 300; English steam road-roll- ing, 605 Escape, fire, 153
Evaporation meter for boilers, 490 Examination papers, Whitworth Scholar- ships, 316; examination of rocks and minerals, microscopical, 580; examina- tion, systematic microscopic, 299 Exhaust steam for heating purposes, 56 Exhausted tea-leaves, 127 Exhibition of 1871, 321; Exhibition, Workmen's International, 409, 457 Exhibitions, working men's, 385, 457 Experiment, medical, 390
Experimental research in relation to em- ployment for workmen, 174 Experiments on the resistance of iron and steel, 539
FELLOW of the Royal Astronomial So- ciety, articles by:-
Astronomical notes, 34, 155, 250, 346, 444, 563
Flight of a star, 361
Saturn, 505, 529 Time, 1
What stripes the sunbeam, 145, 172, 193, 217, 241
Figure and motions of the earth, 6 Filtered air, 102
Filtration, improvement in, 180
Fire-escape, Hawkins's, 153: fireproof apparatus for smutting grain, 343 Flight of a star, 361
Flute and its vicissitudes, the, 411, 458, 557, 603
Food analysis, 175, 202, 292: food, gelatine as a, 586; food, value of, 107 Forecasting of storms, 537, 560 Formation and antiquity of the world, 313, 337, 362, 410, 435, 484, 553, 580 France and Prussia, strength of, 509 Friction, 33, 82, 250, 467, 513, 585; friction in steam cylinders, 273, 294, 344, 388 Fulgurator, electric, 224 Furnaces, hot blast, 244
GALVANIC batteries, 297
Gas management, 292; gas manufacture,
HALFPENNY postage, 391 Halley's comet, 50, 77, 100 Harmonium, practical treatise on, 25, 99, 178, 290, 433, 458, 555 Hawkins's fire-escape, 153
Heat, economising, 388; heat, solar, 416; heat, Professor Tyndall on, 55 Heating with exhaust steam, 56 High electrical resistance, 466; high- pressure boilers, 459; high pressure engines, 106
Hints on microscopes, 274; hints on watering plants, 490; hints to astro- nomical students, 73, 265, 386 Horology, constructive, 418 Horse, geological pedigree of, 102 Hot-blast furnaces, 244
How to choose a microscope, 418, 531; how to collect insects, 317; how mer- curial thermometers are made, 539; how to obtain stereoscopic photographs of microscopic objects, 606; how to use cements, 538.
Hutchinson's new railway system. 148 Huxley, Professor, on the horse, 102
IMPROVED: combination tool, 175; life preserving dress, 110; machine for mor- tising timber, 31; portable steam- engine, 467; screw-driver, 248; veloci- mane, 155; waggon wheel, 220 Improvements in: direct-acting engines, 108; filtration, 180; gas manufacture, 507;
obtaining motive-power, 223; optical apparatus, 606; paddle-wheels, 108; power-looms, 607 Information, geographical, 126 Inorganic chemistry, 506, 554 Insects, boring, 176; insects, collecting,
LATHE and its uses, 248; lathe for Titus Salt, Esq., 52 Launching a great caisson, 465 Laws on patents, the, 202 Lead ores, dressing, 80 Leaf as a worker, the, 391, 509 Leaves, tea, 127
Lieut.-Gen. Hutchinson's railway system, 148
Life, organic, 462, 486; life, progression of, 534, 558; life-preserving dress, 110 Lifeboat, the ENGLISH MECHANIC, 101; lifeboat, steam, 202 Light and magnetism, 33 Liquor-barrels, enamelling, 586 Liver, structure of, 56 Lockyer, Mr., on the sun, 110, 320 Looking-glasses, platinised, 27, 56 Looms, power, 607 Lubricator, economic, 109 Lunar activity, 511
Manufacture of gas, 507; manufacture of Portland cement, 582
Manufacturing sugar from beets, 392 Materials, strength of, 97, 122, 199, 842 Mathematics, 57, 83, 180
May, astronomical notes for, 155 McCarthy and Cunningham's motive- power, 223
Measures and weights, 440
Mechanical movements, 4, 27, 53, 75, 104, 124, 148, 176, 200, 220, 247 269, 291, 321, 344, 365, 392, 417, 440, 464, 488, 535, 584 Medical experiment, 390 Mercurial thermometers, 539 Metallic paint, Jay's, 179 Metamorphoses of bees, 582
Meteors and comets, 313, 362, 434, 482 Meter, evaporation, 490
Method of high electrical resistance, 466 Microscopes: choosing, 274, 418, 531, 578; mounting for, 602
Microscopic accessories, 462; microscopic examination, 299; microscopic objects,
NATURE, sketching from, 3, 106 Nebula and comets, 272, 295 Norman Lockyer on the sun, 110, 320 Notation, modern chemical, 9 Notes, astronomical, 34, 155, 250, 346, 444. 563; notes of proceedings, Astronomical Society, 8, 109, 224; notes on recent scientific discoveries, 58, 245, 368 New: antiseptic, 559; electro-typographic machine, 510; patent compound set, 128; salt for intense electric currents 603 sphygmoscope, 586
New York pneumatic tunnel, 32
Physical condition of the sun, 577
Piece of granite, a, 562
Plants, watering, 490
Platinised looking-glasses and mirrors, 27, 56, 438
Pneumatic tunnel, New York, 32 Polarisation of heat, 55
Polytechnic barometer, Royal, 8
Popular food analysis, 175, 202
Porcelain, printing on, 538 Portable steam-engine, 467 Portland cement, 582
Postage, halfpenny, 391
Power from deep wells. 391; power looms, 607; power, motive, 923
SAFETY in working coal, 269, 294
Salt, 181: salt for intense electric cur rents, 603
Scenery and geological structure of a country, 219, 270
Scholarships, the Whitworth, 316 Science for the young, 54, 78, 105, 154, 171, 196, 222, 267, 296, 318, 337, 364, 411, 485, 507, 532, 556, 581; science, proba- bilities in, 103
Scientific discoveries, recent, 58, 215, 368 Screw-driver, improved, 248 Searcher, aplanatic, 179
Seek's apparatus for smutting grain, 343 Sections, prismatic, 414 Selecting microscopes, 274 Self-propelling vehicles, 77
September, astronomical notes for, 563 Shearing animals or skins, 125 Shoeburyness, mitrailleur at. 511 Sketching from Nature, 3, 106 Skins, shearing, 125
Slide-rest, spherical, 248 Smutting grain, 343
Society of Arts' art workmanship compe- tition, 319
Soirée of the Royal Microscopical Society, 121
Solar eclipses, 225; solar heat, 416 Solomons's "compound set," 128 Sources of electricity, 26, 74, 146, 195, 218, 265, 340, 387, 481, 530, 579 Spectroscopic observations of the sun, 320
Spherical slide-rest, 248 Sphygmoscope, new, 586
Spontaneous generation of living things, 422
Star, flight of a, 361; star grouping, star drift, and star mist, 246, 267 Stationary boilers, 459
Steam cylinders, friction in. 273, 294, 344, 388; steam drills, diamond-pointed, 272: steam engine, portable, 467; steam engine, the Ruddick, 489: steam engines, duty of, 319; steam, exhaust, 56; steam lifeboat, 202; steam on com- mon roads, 442; steam read-rolling in England, 605
Steemer, rond, 511 Steel, resistance of, 539
Ster escopic photographs of miscroscopic cbjects, COG
Stockwell's improved combination tool, 175
Storer's direct-acting-engines, 108 Storms, forecasting, 537, 560 Story of a piece of granite, 562 Strength of France and Prussia, 509; strength of materials, 97, 122, 199, 312 Stripes in the sunbeam, 145 172, 193, 217, 241
Structure of a country, geological, 219, 270; structure of the liver, 56 Studying insects, 317 Sugar from beets, 392 Sulphur in irons, 54
Sun, the, 577; sun, Norman Lockyer on the, 110, 320; sunbeam's stripes, 145, 172, 193, 217, 241; sunstroke, theory of, 603 Surface of the moon, 559 Swarming of bees, 582 Symbols, chemical, 49, 97 System of railways, Hutchinson's, 148 Systematic miscroscopic examination, 299
TEA-LEAVES, exhausted, 127 Telescopic work for moonlight evenings, 418, 436, 602
Temperature of the sun, 577 Testing the duty of steam-engines, 319 Theory and applications of electricity, 26, 74. 146, 195, 218, 265, 340, 387, 481, 530, 579; theory of nebula and comets, 272, 295; theory of sunstroke, 603 Thermometers, mercurial, 539 Thomson's road-steamer, 511 Timber, machine for mortising, 31 Time, 1
Tools: combination, 175: edge, 275 Town and country miscroscopical jottings, 337, 363, 410, 436, 484
Treatise on the harmonium, 25, 99, 173, 290, 433, 458, 555
Tree, varnish, 439
Trotting velocipede, the, 76 True velocipede, the, 31 Tubular-wells, Watson's, 275 Tunnel. Broadway Pneumatic. 32
Tyndall, Profesor: on filtered air, 102; on heat, 55
USE of phosphates in dyeing. 511; uses and abuses of the ear, 5, 28, 51; uses of the lathe, 248; uses of photography,
[Many of the subjects under this head will also be found in “Notes, Queries, and Replies.”]
Allen's reaping and mowing machine, 156 Amalgamation as a preventive of rust,
279; amalgamation movement, the. 424 Amateur farming. 87; amateur micro- scopical society, 617 America, travelling in, 86 Analysis: quantitative, 87; spectrum, 306, 611; analyses, water, 187, 204, 253, 282, 353, 877
Ancient: architecture in India, 160; British gold coin, 520; granite working, 16; musical instrument, 16 Angles and tangents 303, 351; angles, tri- section of, 89, 257, 329, 376 Aperture and power of telescopes, 14 Apparatus, electro-magnetle, 185 Apparent paradoxes in equations, 88 Appeals: & Cumberland miner's, 307, 326, 350, 593; a workman's, 331, 349
Approximate mode of rectifying the circle, 376, 468, 522, 545
Approximations, geometrical, 451
Architecture in India, 160
Arithmetical problem, 227
Arithmometer, the, 114
Artillery discharges and rain, 448, 495, 545
Ash-box for locomotives, 568 Astronomical, 58, 114, 130, 158, 132, 185, 204, 210, 2341, 251, 257, 277, 280, 323, 349, 369, 401, 444, 450, 491, 494, 47, 518, 586, 593; astronomical notes, 563 Attraction and momentum, 444 Auric chloride, 588
BACK-WHEEL bicycle, 136 Balancing millstones, 426 Ball, earth, and gun, 450
Bands, galvanic, 11
Bar, cutter, 353; bar, micrometer, 379, 403
Baric chlorate, 64
Barium, chlorate of, 10, 186
Barometer, water, 396
Barometric pressure, 444
Barton's feed-water heater, 369 Bath Forum recreations, 354
Batteries, 570, 587, 591; batteries: Cal- laud's, 328, 347, 377, 522: chemical, 88; galvanic, 225, 494; gauze, 211; iron in, 402, 447, 450, 522: manganese, 38; Roberts's galvanic, 305 Beardsley's dynamics, 112, 163, 225 Bedford Canal experiment, 183 Bees, 115
Belfast Workmen's Exhibition, 257 Bell, clock, 330
Bellies of violins, 111
Belts of Jupiter, 35, 134 Bennett's chuck, 41, 114
Bicycle: ninety miles a day by a, 137: riding, 374, 398, 426, 494, 521, 543, 566, 592, 614; step for, 614
Bicycles, 329, 351, 376, 426, 472; bicycles: back-wheel, 136: Miltoniau, 352 Big heads and phrenology, 40, 90 Biology and big heads, 90 Blacking brasswork, 587
Blindness, colour, 232, 234, 254, 258 Blocks, powers of, 425
Blowing glass, 113; blowing organ, 229 Blowpipe, self-acting, 305
Blue mahoe wood, 111, 159, 160
Boat-building, 616
Bodies, heavenly, 282
Body, the human, 449
Boilers: feeding, 204, 227, 426; Field, the, 522, 543; incrustation of, 62: power of, 590; safety valves of, 852; scraper for, 491; scale in. 230; testing, 282 Bolters, silk, 403
Book-edges, cutting, 349; bookbinders' cutting press, 64 Boomerang, the, 160, 257
Boring cylinders, 234, 396; boring insects, 258
Bottoms of cylinder covers, 521 Bow, cross, 15
Brake, carriage, 64
Brasswork, blacking. 587
Brazilian railways, 371
Bread-making, 15, 63
Breaker, contact, 181
Brewing, 161
Carriage break, new, 64; carriage, gun, 564; carriage wheels, 495; carriages, steam, 304, 329
Case hardening, 59, 114, 159
Cause of light, 543, 564; cause of storms, 403 cause of the tide, 184
Cell, Slater's iron, 494
Chains, strength of, 163, 186, 207, 254 Chassepot rifle, the, 517, 594
Cheap gas, 354, 370, 400, 420, 448, 498, 512, 569; cheap water barometer, 396 Chemical, 136, 160, 184, 282, 331, 447, 493, 590, 592; chemical battery, 88; chemi- cal floriculture and pomology, 312, 379, 497; chemical solutions, 474 Chemistry, 611
Cherry-stoning machine, 252 Cheshire salt-mine, a, 355
Chicory and starch, 161
China grass, 87
Colliery ventilation, 11
Colony, an ENGLISH MECHANIC, 330 Colour-blindness, 232, 234, 254, 258; colours of Jupiter, 86; colours of stars, 256
Combined funnel and measure, 136; com- bined drill, runner and tap, 111; com- bined punching, shearing, and stretching machine, 132
Comfort for railway travellers, 86
Commerce and trade, 161, 184, 206, 209, 227, 257, 278, 306, 326, 329, 351, 875, 378 Comparative temperature in June '69 and '70, 403
Composition of the human body, 449; composition of the meteorites, 570 Comstock's rotary spader, 64 Concave lens, 307
Concussion shells, 136
Condenser, microscopic, 305, 353 Conductors, lightning, 544
Cones, frustrum of, 474
Cones flour, 10
Congratulations, 323
Conic sections, 446, 474, 497
Constellation names, 446
Constructing telescopes, 158, 251
Construction of: clavichord, 373; lathes,
448, 474; organs, 112; velocipedes, 210,
Consumption, tobacco a preventive of, 591 Contact-breaker, 181
Contributors and querists, 546, 587 Convexity of water, 252
Cooking, Stevens's improvements in, 60 Copper sheathing, 160
Cornwall and Devon, 324
Cosmology, lunar, 423, 519, 545, 610 Cottage and cabinet pianoforte, 41 Cotton-spinning, 111, 133, 136. 162, 182,
204, 230, 254, 283, 302, 330, 350, 403
Coventry tricycle the, 468
Covering piano-keys, 86
Covers of cylinders, 521
Craters, lunar, 233, 374, 468, 519
Criminal literature, 63
Criticism, unfair, 374, 401, 426, 446
Cross-breeding plants, 378; cross-bow, 15 Crossing the Straits of Dover, 323 Crushed oats, 64
Culture, mushrooms, 400; vine, 593 Cumberland miner's appeal, a, 307, 326,
EARTH, the, its figure and motions, 89, 134, 159, 161, 163, 182, 209, 212, 234, 256, 257, 258, 303; earth, gun, and ball, 450 Eccentrics, 355, 400
Education: military, 401; scientific, 570 Effects of carbonic acid, 590 Elastic boiler and tube scraper. 491 Electric experiments, air pump for, 325; electric light for pictures, 492; electric machines, 14; electric machines, Slater's, 131; electric spark, resistance to, 135 Electrical discoveries, 307; electrical psy- chology, 113
Electricity, 375, 396; electricity, ignition, by, 521
Electro-gilding, 424; electro-magnetic ap- paratus, 185; electro-magnetism, 544, 570; electro-plating, 424 Ellipsograph, 448 Elliptical gearing, 397 Ellipticity of the earth, 256 Emigration, 402, 444, 492, 520, 543; emi- gration to Canada, 403; emigration and geography, 115, 230, 255, 258. 253, 302, 327; emigration to Victoria, 378 Employment and advertising, 226 Engine lubricators, 156, 185, 212; engine- pump, model, 157
Engines: carding, 136; rotatory, 61, 114; steam fire, 84; wheel-cutting, 12 Engineering query, 39
ENGLISH MECHANIC: colony, 380, 402; lifeboat, 251; microscopical society, 592; mutual improvement societies, 89, 130, 159, 187, 351; society for Bristol, 593
English roads, 65, 89; English velocipede, the, 65, 89, 230
Equations, 35, 38, 88, 131, 159, 226, 284,
Equisonant flute, Clinton's, 425 Equivalents, 590
Erect declining sun-dial, 14 Examination of ale, miscroscopic, 522; examination papers, South Kensington, 590; examination questions, 369 Exhibitions: Belfast Workmen's, 257; Workmen's International, 130, 162 Expanding drills, 233
Experiments: air-pump for electric, 325; Bedford Canal, 183; on light, Tyndall's,
Expo-ure of plates, 545
Explanatory, 35, 63, 112
Eye, the, 256, 308, 546; eyesight, 306, 332
FACTS wanted, 184
Fairlie's "Little Wonder," 208 Fairy wheels, 233, 258 Farming, amateur, 87
Fats and oils, vegetable, 331, 347, 379 Feathers, purifying, 895
Feed-water heater, 301, 329, 369, 610 Feeding boilers, 204, 227, 369, 426 Feet, tender, 590
Field boiler, the, 522, 543
Figure and motions of the earth, 89, 134, 159, 163, 182, 209, 212, 234, 256, 257, 258, 303
Files, renovating, 230
Finding position of eccentrics, 400 Fingering the flute, 373
Fingers, mechanical, 305
Fire engines, steam, 84; flres, Kapper's improved, 17
Fishing-rods, 111, 159, 162, 450 Flight, 282
Floriculture and pomology, chemical, 332, 879, 497
Focal length of concave lens, 307 Focus, 591
Fog-horns, 160,496
Fontenelle, the crater, 468, 519 Foot-lathe for turning bungs, 15 Forces, parallelogram of, 375 Forms, irregular, 208
Fortifications of Paris, 593
Forum recreations, Bath, 354
Fossil, coal-measure, 612
Fothergill's self-feathering screw-propel- lers, 12
Four-wheeled velocipedes, 320, 521
"F. R. A.S." and the "Nautical Almanac," 14, 35, 58
Fraunhofer's lines, 114
Free-reed organs, 518, 569, 614
French mitrailleuse, the, 515
Frustrum of cone, 474
Fuel, gas as a, 16; fuel of the sun, 160, 203, 225
Functions of food, 207
Funnel and measure, combined, 136 Fusce for concussion shells, 136
GALVANIC bands, 11; galvanic batte- ries, 225, 494, 522; galvanic battery, Roberts's, 305
Galvanism, medical, 281, 326 Galway, Mayo, and Sligo, 348 Gas by a new process, 474; gas as a fuel,
16; gas for heating greenhouse, 12; gas mains, tool for, 111; gas stove, oxy- hydrogen, 41; gas: carbonic acid, 614, 615; carburetting, 63; cheap, 354, 370, 400, 420, 448, 498, 542, 569 Gate latch, 61
Gauge-cock, 60; gauge, water, 60 Gauze battery, platinised, 211 Gearing, elliptical, 397
Geography and emigration, 115, 230, 255, 258, 283, 302, 327
Geology, 303, 325; geology of Ireland,
Geometrical approximations, 451; geo- metry, 300
Germ diseases, 616; germ theory the, 258, 307
Girders, strain on, 10
Glass: alabaster, 590; blowing, 113; burning, 208; stained, 114
Glasses: object, 40, 185, 252, 282, 333; орега, 195, 185
Globes, readings from the, 208, 252, 278, 329, 352, 372, 421, 472, 518, 542, 588 Glue, melting, 587
Gold: chloride of, 592; coin, ancient, 520; testing, 590
Good: chemical battery, 88; Hope, Cape of, #73; instrument, a, 15; paint, 135 Gourds, 350
Granite-working in ancient times, 16 Grass: China, 87; rhea, 114 Gravity lactometer, 36 Great circle sailing, 424 Greenhouse heating, 12, 284
Greenwood's fret-saw machine, 612 Grinding: object glasses, 333; speculum,
Handy tent, photographic, 520 Handwriting. 469, 515, 545 Harmonium, the, 186, 206, 226, 234, 398, 451, 514, 518, 569, 614, 615; harmonium keys, 86; harmonium reeds, 41, 90, 471 Harvest, the, 492
Hawkins's musical notation, 58, 227 Heads, big, and phrenology, 40, 90 Heaters for feed water, 301, 329, 369, 610 Heating greenhouses, 12, 284 Heavenly bodies, light of, 282 Height of clouds, 515, 543, 569, 587 Herschelian telescope. 563 Highest vacuum in air pump, 252, 305 Hints on cross-breeding plants, 378; to Correspondents, 617; to millers, 378 History of the pianoforte, 446, 469 Hodgson's wire tramway, 228 Holder for tool, 209
Holding papers, clip for, 284 Hominy, 87
Hopkinson's valve, 12
Horizontal windmills, 14, 450, 495 Horns, fog, 160, 496
Horse-power. 543, 591
How to keep the clock right, 62, 256; how LL.D.'s and Ph.D's are made, 515, 567; how to make a camera, 396; how to make sun-dials, 14, 62; how to skele- tonise leaves, 566; how to trisect an angle, 376
Human body, the, 449
Hydrofluosilicic acid, 10; hydro-pneu-
matie gun-carriage, 564 Hygiene of ventilation, 210 Hypochloric acid, 160
ICE, artificial, 11, 62
Ignition by electricity, 521 Illuminated portion of the moon, 11, 63 Implements, agricultural, 64, 156 Improved: air pump, 445; fires, Kapper's 17; friction clutch, 569; tricycle, 308, 420, 468
Improvement societies, ENGLISH ME- CHANIC mutual, 89, 130, 159, 187 Improvements in: cooking, 60; gun- powder, 204; motive power, Cunning- ham's, 256, 351; old cottage and cabinet pianofortes, 41; sewing machines, 588; steam pumps and fire engines, 84; turret clocks, 83
Inclined surfaces, tool for, 401 Increase of insanity, 111 Incrustation of boilers, 62
Index for dividing plate, 114 India-rubber, vulcanising, 546 Indian architecture, ancient, 160 Indigo, 375
Induction coll, 207, 225, 279, 284, 375, 567,
Least squares, on the method of, 38 Leaves, skeletonising, 566
Leigh's plan for crossing the Straits of Dover, 323
Lenses: concave, 307; opera-glass, 135. Level surfaces, tool for, 401 Lever of safety-valve, 448
Libel on British workmen, a, 161 Lifeboats; ENGLISH MECHANIC, 251 "otter" for, 233; steam, 232, 279, 304 Light, 35; light, electric, 492; light of the heavenly bodies, 282; light, nature of, 543, 564; light, Tyndall's experiments
MACHINES for: cutting irregular forms, 208; electrical purposes, 14; fret- sawing, 612; hand-planing, 446: magneto- electric, 131 planing, 493; printing, 445; punching, shearing, and stretching, 132; reaping and mowing, 156; sewing, 90, 113, 157, 211, 231, 232, 280, 308, 374, 375, 588; stoning cherries, 252 "Macclesfield" velocipede, the, 15, 89 Magnetism, 590
Magneto-electric machines, Slater's, 131 Mahoe-wood, blue, 111, 159, 160
Making: bread, 15, 63; camera, 396; cod- liver oil, 495; gas, 474; sundials, 14. 62 Malaria, investigation of, 497
Mammoth, 496, 522
Man, pre-Adamite, 422 Manganose battery, 38
Manganic sesqui-hydrate, 377 Mauichord, the, 399
Manufacture of shoddy, 11, 59 Maranta arrow-root, 612 Materials for paper, 112 Mathematics, 256
Matrimony and big heads, 90 Mayo and Sligo, 348
McCarthy and Cunningham's motivo power, 256, 351
Mean distance of the sun, 38, 86, 228 Measure and funnel, combined, 136 Mechanical, 586; mechanical fingers, 305 Medallion turning, 617
Medical: coils, 593; galvanism, 281, 326;
opinion on bicycle-riding, 374, 398 Melting glue, 587
Millstones: balancing, 426; dressing, 227 Miltonian" bicycle, the, 352 Mine, rock-salt, 355
Miner's appeal, a, 307, 326, 350, 595 Mitrailleuse, the French, 515 Moa or dinornis, the, 212, 226 Model engine, pump for, 157 Moistening labels, 136 Momentum and attraction, 444 Moncrieff's gun-carriage, 564 Monoxide, carbon, 256
Monster harmonium, 451
Moon: illuminated portions of, 11, 63; motions of, 210, 257
Mordan's self-centering wire chuck, 544 Moss, Irish, 542
Motion: link, 301, 352, 355, 378, 425, 471, 519, 541, 589; lunar, 545; motions of the earth, 89, 134, 159, 161, 163, 182, 20 212, 234, 257, 303; motions of the " and earth, 210, 257
Motive power: electro magnetism as a, 570; improvements in, 256, 351; for velocipede, 497
Mounting: insects for the microscope, 564; planing machine, 493; telescopes, 158
Movements, wing, 282
Mowing machine, Allen's, 156 ¦
Mushroom culture, 400
Music, 308, 332, 349, 445, 494
Musical, 445, 494; musical instrument,
ancient, 16; musical instruments, 346;
musical notation, 58, 227, 496, 544
Mutual improvement societies, ENGLISH
MECHANIC, 89, 130, 159, 187
NAMES of constellations, 446
National Gallery, lighting, 347
Natural science in military education, 401 Nature of light, 543, 564
"Nautical Almanack," the, and "F.R.A.S." 14, 35, 58
Needham's starter for sewing machines, 232 New carriage brake, 64; lathe, 421; paint, a, 61; planisphere, 210; process of gas-making, 474; style of railway, 277 Ninety miles a day on a bicycle, 137 Nitrate of silver, 590
North of Ireland, 350; North Wales, 376 Northwich salt mine, 355
Notation, musical, 58, 227, 496, 545 Notes, astronomical, 450, 563
Numerals, Roman, 446
Nut, lock, 16
OATS, crushed, 64
Object-glasses, 40, 185, 252, 282, 333; ob- jects, test, 63
Observations, astromomical, 234, 518, 613
Obtaining motive power, 256, 351
Occultation of Saturn, 136
Oil cod-liver, 495, 542; oils and fats,
vegetable, 331, 347, 379
Old: cottage and cabinet pianos, 41; files,
renovating, 230; music, 308
Opera-glass lenses, 135, 185
Opinion on bicycle riding, medical, 374, 398
Optical, 277, 323, 423, 586; "Optical Brick-
layer's" telescope, the, 378, 423
Orders, Post-office, 494
Organ, the, 38, 88, 112, 138, 139, 185, 228,
234, 279, 518, 569, 614; organ-blowing,
228; organ-pipes, 110, 160, 330; organs,
free-reed, 518, 569, 614
Origin of meteorites, 587 Orthotoptics, 305
Otter" for lifeboat service, 233
Oxyhydrogen gas stove, 41
PAINT, 138; paint, a new, 61
Painting: cistern, 590; dissolving views, 472; fresco, 497
Paper, materials for, 112; papers, clip for,
Parabolising specula, 37, 135
Paradoxes in equations, 88
Parallax, sun's, 402, 425, 474 Parallelogram of forces, 375 Paris defences, the, 593
Patent: engine lubricator, 156; laws, the, 331; lubricator, Turner's, 185, 212; ro- tary spader, Comstock's, 64; starter for sewing machines, 202; wedge-driv- ing drums, 113
Peculiarity in eyesight, 306, 332
Pedestrian tours, 423
Pendulums, 90
Perspective, 332; perspective drawing, 397
Petersen's steam lifeboat, 279, 304
"Phantom" veloce, the, 567; "Phantom"
wheel, the, 87, 115, 137, 163, 256, 303, 328,
495, 567, 616
Philosophy of the ENGLISH MECHANIC, 517
"Phoenix velocipede, the, 426
Phonography, 308, 328, 354, 372, 400, 448,
521, 568, 617
Phosphorus, powdering, 10
Photographic, 59, 182, 279, 307, 308, 545,
591; photographic tent, 520.
Photography, solar, 473
Photoscope, the 377
Phrenology, 40, 90, 254, 325, 447
Pianoforte, the, 304, 469, 496; pianoforte,
history of, 446, 469; pianoforte keys,
covering, 86; pianoforte, upright, 398
Picric acid, 588, 590
Pictures: electric light for, 492; inverted,
256, 308
Pipes, organ, 110, 139, 160, 330
Pitch of harmonium reeds, 471
Pitman's phonography, 308, 328, 354, 372,
400, 448, 521, 568, 617
Plan for crossing the Straits of Dover,
Leigh's, 323
Planet Vulcan, the supposed, 35, 84, 137 Planing machines: hand, 446; mounting,
Planisphere, new, 210
Plant's lathe, 421
Plant, zinc, 38; plants, cross-breeding, 378 Plate, dividing. 114; plate, division, 612; plates, exposure of, 545
Platinised: gauze battery, 211; specula, 111
Plato, spots on, 518, 613
Playing the flute, 402, 475, 515, 593
Plumbago v. platina crucibles, 183
Pluto, the lunar crater, 233
Point movers, 355
Poisonous postage stamps, 15, 35
Polariscope, the, 468
Pomology and floriculture, 332, 379, 497
Port Jackson, 373
Position of eccentries, 400
Post-office: orders, 494; telegraphs, 280
Postage stamps, poisonous, 15, 35 Potato dibble, 156; potato-growing, 353 Powdering phosphorus, 10 Power, accumulating, 353, 425; power and aperture of telescopes, 14: power of boiler, 590; power, horse, 543, 591; power, motive, 256, 351; power, screw, 592, 611; powers of blocks, 425; powers of sub- stances to resist the electric spark, 135
Practical telegraphy, 401
Pre-Adamite man, 422
Preserving: fruit, 450; musical instru-
ments, 346
Press, bookbinders' cutting, 64 Pressure: barometric, 444; steam, 588; unequal steam, 397, 422
Preventing rust, 279
Priming of boilers, 543
Printing machines, 445
Problem, arithmetical, 227; problems, 331
Process of gas-making, new, 474
Propellers: Fothergill's 12; screw, 612,
617; steam, 255
Propelling a vessel by a windmill, 587
Psychology, electrical, 113
Pulleys, Kelsey's, 113
Pumps: air, 252, 305, 325, 375, 396, 445, 494;
model engine, 157; Shand's steam, 85;
ships', 423
Punching and shearing machine, 132
Purification of: chloride of silver, 10;
feathers and hair, 395
QUADRATICS reducible to quad-
ratics, 210
Quantitative analysis, 87
Querists and contributors, 546, 587
Query, engineering, 39
Questions: curious, 378, 518, 540, 592, 610;
examination, 309; for millers, 10, 11,
36, 59, 87, 112, 133, 182, 226, 254, 278,
332, 851, 373, 378, 403, 425, 426
RAILWAY trains across the Straits of
Dover, conveying, 323; railway travel-
lers, comfort for, 864
Railways: Brazilian, 371; street, 277
Rain, artillery and, 448, 495, 545
Reaction of currents, 396
Readings from the globes, 208, 252, 278,
329, 352, 372, 421, 472, 518, 542, 588
Reaping and mowing machine, Allen's, 156
Rebuilding organ, 279
Reclining sundial, 62
Recreations, Bath Forum, 354
Rectifying the circle, 376, 468, 522, 545
Reed organs, free, 518, 569, 614; reeds,
harmonium, 41, 90, 471
Reflecting telescope. 111
Reflectors, dew caps for, 257; reflectors
and refractors, 10, 42
Refracting telescope, 135
Relation of power to apertures in tele-
scopes, 14
Remains, Indian architectural, 160
Remarkable old musical instrument, 16
Remarks on slot-cutting, 112
Renovating old files, 230
Resistance to electric spark, 135
Rhea grass, 114
Riding bicycles, 374, 398, 426, 494, 521,
543, 566, 592, 614
Rifles: Chassepot, 417, 594; Soper, 138, 256
Rimer, drill, and tap, combined, 111
Rings: round the sun, 308; of Saturn, 449
Road: locomotive, 253; steamer, 37; roads,
English, 65, 89
Roberts's galvanic battery, 305
Rocksalt mine, Northwich, 355
Rods, fishing, 450
Ropes, strength of, 425
Rotary engine, 61, 114; spader, 64
Rotation of the earth, 134, 159, 161, 234
Rudge's air-pump, 494
Rushes, 185, 207
Rust, preventing, 279
SAFETY-VALVE, 279, 325, 352, 448
Salads, 159, 305, 326
Saleable upright pianoforte, 398
Salt mine, Northwich, 355
Saltaire lathe, the, 162, 184, 208
Satellites of Uranus, 522, 540, 591, 610
Saturn: 136, 449, 494; Saturn and Jupi-
ter, 279
Scale in steam boilers, 230
Scarborough, 324
Science natural, in military education,
401; summer, 325; science for the
young, 257, 283
Scientific education, 570
Scotland, 324, 376
Scraper for boilers, elastic, 491
Screw-cutting lathe, 252: screw chuck,
159; screw-in chuck, 184: screw power,
592, 611; screw propellers, Fother-
gill's, 12; screw propelling, 612, 617
Sea-sickness, 37
Secret code for telegrams, 423 Sections, conic, 446, 474, 497 Self-acting: blowpipe, 305; feed-water heater, 369; self-centering chucks, 11,37, 544; self-feathering screw propellers, 12
Sentence, curious, 423, 469, 497
Sesqui-hydrate, manganic, 377
Setting eccentries, 403
Sewing machines, 90, 113, 157, 211, 231,
232, 280, 308, 374, 375, 588
Shand's improvements in steam pumps, 84
Shearing, punching,
stretching
machine, 132
Sheathing iron ships, 160
Silver chloride of, 10; nitrate of, 590
Silvering clock-dials, 587; specula, 163,
211, 233
Simultaneous equations, 159, 226, 284, 806
Singing, 308
Skating, summer, 326
Skeletonising leaves, 566
Slab, Yorkshire, 185
Slater's iron-cell, 494: Slater's magneto-
electric machines, 131
Sleep, 115
Slide screw-cutting lathe, small, 252;
slide-valves, 254, 589
Sligo and Galway, 348
Slot-cutting, 112, 162. 184
Small drills, tempering, 353; small slide
screw-cutting lathe, 252
"Smith" turn-buckle, the, 612
Snuff and tobacco, 591
Soda crystals, 10
Soft-voiced organ-pipe, 160
Solar photography, 473: solar spectrum,
lines in, 183, 211, 230, 256, 257, 279, 282,
302, 329, 347, 378
Solutions: chemical, 256; standard, 474
Soper rifle, the, 138, 256
South Kensington: examination papers,
590; musical instruments at, 346
Space for strings in the piano, 352
Spader, Comstock's rotary, 64
Spark, resistance to electric, 135
Specimens of turned work, 372
Spectroscopical, 323
Spectrum: analysis, 306, 611; solar, 183, 211,
230, 256, 257, 279, 282, 302, 329, 347, 378
Specula parabolising, 37, 135; platinised,
111: silvering, 163, 211, 233
Speculum: grinding. 62, 284: performance
of, 307; testing, 328; working, 611
Spinning-cotton, 111, 133, 136, 162, 182,
204, 230, 254, 283, 302, 330, 350, 403
Spiral water-wheel, 157
Sportsman's velocipede, 349
Spots: on Plato, 518, 613; on the sun, 396
Spring velocipedes, 514
Square bar micrometer, 403; squares,
method of least, 38
Squaring the circle, 300, 326, 350, 351, 376,
424, 446, 612
Stained-glass, 114
Stamps, poisonous postage, 15, 35
Standard solutions, 256
Starch, 185, 395; starch and chicory, 161
Stars: colours of, 256; declination of, 256
Starter for sewing-machines, 232
Startling theory about Jupiter and Saturn,
Steam-boat travellers, comfort for, 86;
steam-boiler feeding, 204, 369; steam-
boilers, scale in, 230; steam-carriages,
304, 329; steam-engine lubricators, 156,
185, 212; steam fire-engines, 84: steam
hammers, 326; steam lifeboat, 232, 279,
304; steam pressure. 588; steam pres-
sure, unequal, 397, 422; steam propellers
for vessels, 255; steam and water, 181
Steamer, road, 37
Steering vessel, 36
Step for bicycle, 614
Summer: science, 325; skating, 326
Sun, the, 64, 545; sun-dials, 14, 62; sun-
flower, the, 114, 162, 185; sun, fuel, of,
160, 203, 225; sun mean distance of, 38,
86, 228; sun's parallax, 402, 425, 474:
sun, rings round the, 308; sun spots, 396
Supposed planet Vulcan, the, 35, 84, 137
Surfaces, inclined and level, 401
Suspension-wheels, 616
Swimming a summer pastime, 426
Swinging-gate, latch for, 61
TACKLE for fishing, 450
Taking cod-liver oil, 495
Tangents and angles, 303, 351
Tap, rimer, and drill, combined, 111
Tea for the million, 617
Teeth, wheel, 327
Telegrams, secret code for, 423
Telegraphs, Post-office, 286
Telegraphy, practical, 401
Telescope construction, 204, 251: tele-
scopes achromatic, 110: Herschelian,
563; Kitchener's (Dr.), 115; reflecting,
111 refracting, 135, 211
Telescopic, 13, 14, 15, 34, 85, 110, 130, 158, 182, 208, 211, 234, 251, 370, 378, 423, 472, 542, 546
Temperature in June and July, '69 and '70, 403, 497
Tempering small drills, 353
Tender feet, 590
Tent, photographic, 520
Test for arsenic, 10; test objects, 63;
tests, 185
UNEQUAL steam pressure, 397, 422
Unfair criticism, 374, 401, 426, 446
Universal clothes-washer, 228
Unknown coal-measure fossil, 612
Upright pianoforte, 398
Uranus, satellites of, 522, 540, 591, 610
Use of the telescope, 251; uses of the
lathe, 329
Useful tool for level surfaces, 401 Utilising power, 353, 425
VACUUM in air pump, 252, 305 Valves: Hopkinson's, 12; "lead" of 254; safety, 279, 325, 352, 448; slide, 589
Variations in barometric pressure, 444
Varnish. violin, 14, 39, 62, 227
Vegetable oils and fats, 331, 347, 379
Veloce, the Phantom," 567
Velocipede construction, 210, 374; veloci- pede wheel, the "Phantom," 256; ve- locipedes,131, 256, 326, 329; velocipedes: "English," 65, 89, 230; four-wheeled,
330, 521; "Macclesfield," 15, 89; mo-
tive power for, 497; "Phoenix," 426;
"Shiptonian," 253; sportsman's, 349;
spring, 514
Ventilation: buildings, 306, 332; collieries, 11: hygiene of, 210
Vessel propelled by a windmill, 582;
vessels : building and steering, 36
Violin bellies, 111; violin varnish, 14, 39,
WAGES, 329
Wales, North, 376
Walking, 494, 614
Wall decoration, 473, 497 Ward's flute, 468
Water analyses, 187, 234, 253, 282, 353, 377; barometer, 396; convexity of, 252; feed, 301, 329, 610; gauge and gauge- cock, 60; water-heater, Barton's, 369: water and steam, 181; water-wheel, 228
Wedge-driving drums, Kelsey's, 113
Weights of chemical solutions, 474
West of Ireland, 257
What is a manichord, 399; what we owe
to the alchemists, 616
Wheel-cutting engine, 12; wheel-stones,
282; wheels: carriage, 495; fairy, 233,
258; fly, 301; friction, 446; Phan-
tom," 87, 115, 137, 163, 256, 303, 328,
495, 567, 616; Shewan's water, 157;
spiral water, 157; suspension, 616;
water, 228
Windmills, 14, 40, 450, 495; windmill for propelling vessels, 587 Window cleaning, 587
Wing movements, 282
Wire-chuck, self-centering, 544; wire for electro-magnetic apparatus, 185; wire tramway at Brighton, 228
Wood for fishing rods, blue mahoe, 111, 159, 160, 162
Wooden organ pipes, 110, 139 Work, turned, 372
Working granite in ancient times, 16; working men and the patent laws, 331; working speculum, 611
Workman's appeal, a, 331, 349; workmen's exhibitions: Belfast, 257; Interna- tional, 130, 162 Workshop accidents, 473 Wray's object-glasses, 40, 252 Writing, hand, 469, 515, 645
Yorkshire slab, 185 Young, science for the, 257, 283
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